There are harmful to all organisms, but some bacteria are helpful in many ways.
They are more helpful than harmful. My two gerbils are both helpful. They've helped me in many ways and so that's why I say they're more of helpful than harmful.
Ants can be helpful or harmful, depending on the circumstances. They can be helpful by aerating the soil, eating potentially dangerous pest species, and eating dead organisms that might otherwise lie around. They can be harmful by ruining food or by biting.
Mutations in bacteria that confer antibiotic resistance help the bacteria survive and thrive in their environment, but can be harmful to humans if these bacteria cause infections that are difficult to treat. Similarly, mutations in insects that confer resistance to pesticides help them survive, but can be harmful to humans as it makes pest control more difficult.
Friction is helpful as it allows us to walk, hold objects, and write. It also helps stop vehicles and machines by providing traction. However, friction can be harmful as it causes wear and tear on moving parts, reduces speed in vehicles, and can cause injuries when there is too much resistance.
No the locust are not helpful to us actually in some ways they are harmful because all they do is come in huge swarms and eat our crops
Harmful insects are insects that are harmful in any way to plants, animals or humans. There are many ways in which insects can be harmful to the above; insects such as locusts can form huge swarms that can destroy whole crops in minutes. Other insects can pierce a leaf or stem of a plant and suck out its juices, leaving the plant to wither and die. Various types of insect carry diseases such as malaria and encephalitis which leave many children in developing countries orphaned and many parents childless.
We build houses. its as simple as that we build buildings on their terrotory and that of course is helpfil to us but harmful to them.
AdvantagesHelps holding objectsCauses objects to come to restdisadvantagesReduces machinery efficiencyOpposes movement of an object
In some ways, yes.
they can kill you
Insects harm us in many ways. Insects, such as flies and mosquitoes, spread diseases like malaria. Bees and wasps (also hornets) can sting us and sometimes, kill us. But insects help us in many ways too, such as pollinating and the control of pests in the house.